26.2 Flashcards

1
Q

define rock

A

is a naturally formed mixture containing minerals, rock fragments, and volcanic glass

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2
Q

how are rocks identified

A

by their composition and texture

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3
Q

what does the texture of a rock describe about a rock

A

describes the size, shape, and the arrangements of the rocks components

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4
Q

where do intrusive rocks form

A

within the crust

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5
Q

what type of molten rock does intrusive igneous rocks form

A

magma

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6
Q

what is the name of the series that illustrates simultaneous crystallization of silicate minerals

A

bowan reaction series

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7
Q

what are the 3 types of magma

A

Mafic, intermediate and felsic

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8
Q

which magma type has a low silica content

A

Mafic

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9
Q

which magma type has a high silica content

A

felsic

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10
Q

which type of crust has an abundant amount of quartz ( oceanic or continental)

A

continental

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11
Q

which type of crust has little to no quartz ( oceanic or quarts)

A

Oceanic or deeep locations in continental

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12
Q

what type of igneous rock has a coarse grained texture

A

intrusive igneous rock

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13
Q

what type of igneous rock has a fine grained texture

A

exstrusive

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14
Q

do fine grained rocks cool slowly or quickly

A

quickly

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15
Q

what are the two specific texture types for extrusive igneous rock

A

vesicular and porphyritic

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16
Q

which texture is the type with holes left behind because of rapid cooling

A

vesicular

17
Q

which texture is the type with two different crystal sizes because of different cooling rates

A

porphyritic

18
Q

what type of rock has a vesecular (holey) texture

A

Pumus